/Engine/Source/Runtime/Landscape/Public/LandscapeRender.h
namespace ELandscapeEditRenderMode { enum Type { None = 0x0, Gizmo = 0x1, SelectRegion = 0x2, SelectComponent = 0x4, Select = SelectRegion | SelectComponent, Mask = 0x8, InvertedMask = 0x10, BitMaskForMask = Mask | InvertedMask, } }